11.6
11.7
12.0
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
13.0
13.1
13.2
14.0
14.1
14.2
14.3
14.4
15.0
15.1
16.0
16.1
16.2
16.3
16.4
16.5
17.0
17.1
18.0
18.1
19.0
19.1
19.2
20.0
20.1
20.2
20.3
20.4
20.5
20.6
21.0
21.1
21.2
22.0
23.0
24.0
24.1
24.2
ECP IMPLEMENTATION STANDARD .................................................................................................................80
PARALLEL PORT FLOPPY DISK CONTROLLER ...................................................................................................88
POWER MANAGEMENT ..............................................................................................................................90
FDC POWER MANAGEMENT...........................................................................................................................90
DSR FROM POWERDOWN..............................................................................................................................90
WAKE UP FROM AUTO POWERDOWN ..............................................................................................................90
REGISTER BEHAVIOR.....................................................................................................................................90
PIN BEHAVIOR ..............................................................................................................................................91
UART POWER MANAGEMENT ........................................................................................................................92
EXIT AUTO POWERDOWN...............................................................................................................................92
PARALLEL PORT ...........................................................................................................................................92
SERIAL IRQ ..................................................................................................................................................93
TIMING DIAGRAMS FOR SER_IRQ CYCLE.......................................................................................................93
ROUTABLE IRQ INPUTS .................................................................................................................................95
PCI CLKRUN SUPPORT ..............................................................................................................................96
OVERVIEW ...................................................................................................................................................96
NCLKRUN FOR SERIAL IRQ .........................................................................................................................96
NCLKRUN FOR LDRQ# ...............................................................................................................................96
USING NCLKRUN ........................................................................................................................................96
X-BUS INTERFACE ......................................................................................................................................98
X-BUS MODES..............................................................................................................................................99
GENERAL PURPOSE I/O ...........................................................................................................................102
GPIO PINS ................................................................................................................................................102
DESCRIPTION..............................................................................................................................................103
GPIO CONTROL .........................................................................................................................................104
GPIO OPERATION ......................................................................................................................................104
GPIO PME AND SMI FUNCTIONALITY...........................................................................................................105
SYSTEM MANAGEMENT INTERRUPT (SMI)............................................................................................106
SMI REGISTERS .........................................................................................................................................106
PME SUPPORT...........................................................................................................................................106
PME REGISTERS ........................................................................................................................................107
RUNTIME REGISTERS...............................................................................................................................107
RUNTIME REGISTERS BLOCK SUMMARY ........................................................................................................107
RUNTIME REGISTERS BLOCK DESCRIPTION ...................................................................................................108
CONFIGURATION ......................................................................................................................................113
CONFIGURATION ACCESS PORTS..................................................................................................................113
CONFIGURATION STATE ...............................................................................................................................113
CONFIGURATION REGISTERS SUMMARY ........................................................................................................114
CONFIGURATION REGISTERS DESCRIPTION ...................................................................................................116
LOGICAL DEVICE BASE I/O ADDRESS AND RANGE ..........................................................................................148
NOTE A. LOGICAL DEVICE IRQ AND DMA OPERATION ...................................................................................150
OPERATIONAL DESCRIPTION .................................................................................................................151
MAXIMUM GUARANTEED RATINGS.................................................................................................................151
DC ELECTRICAL CHARACTERISTICS ..............................................................................................................151
TIMING DIAGRAMS....................................................................................................................................154
PACKAGE OUTLINES................................................................................................................................178
APPENDIX - TEST MODES ........................................................................................................................179
BOARD TEST MODE.....................................................................................................................................179
XNOR-CHAIN TEST MODE ..........................................................................................................................179
SMSC DS – LPC47N267
Page 5
Rev. 10/23/2000